Drilling holes in tank wall for ghost overflow like setup

Settings · 02/26/2016, 03:18 PM

Hi all.
I'm am trying to determine the size and quantity of hole/s to drill in the wall of my aquarium.

I'm am doing a glass version of the ghost overflow set up for bean animal.
The drains are 1" so I already limited my turn over to 600gph right?

This leads me to my next question.
What size hole should I drill in the tank?

1 hole at 1.5" would produce 1400gph

So does it make sense to drill just one hole or should I do two? I do realize I'll never see that type of flow because of my first restriction in drain size.

Looking for help/recommendations

Thank you

Settings · 02/27/2016, 11:30 AM

Bump, anyone.

Settings · 03/08/2016, 05:44 PM

So I ended up drilling two 1.5" holes in the back of the tank. After reading about the bean animal again I now realize that the 1" bulkheads are not going to restrict my overflow that much. It's the pipeline after the overflow. So I'll add a expansion to 1.5" to run 1.5" drains after the balkheads.

02/26/2016, 03:18 PM	#1
Settings Registered Member Join Date: Feb 2015 Location: San Diego Posts: 229	Drilling holes in tank wall for ghost overflow like setup Hi all. I'm am trying to determine the size and quantity of hole/s to drill in the wall of my aquarium. I'm am doing a glass version of the ghost overflow set up for bean animal. The drains are 1" so I already limited my turn over to 600gph right? This leads me to my next question. What size hole should I drill in the tank? 1 hole at 1.5" would produce 1400gph So does it make sense to drill just one hole or should I do two? I do realize I'll never see that type of flow because of my first restriction in drain size. Looking for help/recommendations Thank you __________________ 140g 48x26x26 Euro Braced.

02/27/2016, 11:30 AM	#2
Settings Registered Member Join Date: Feb 2015 Location: San Diego Posts: 229	Bump, anyone. __________________ 140g 48x26x26 Euro Braced.

03/08/2016, 05:44 PM	#3
Settings Registered Member Join Date: Feb 2015 Location: San Diego Posts: 229	So I ended up drilling two 1.5" holes in the back of the tank. After reading about the bean animal again I now realize that the 1" bulkheads are not going to restrict my overflow that much. It's the pipeline after the overflow. So I'll add a expansion to 1.5" to run 1.5" drains after the balkheads. __________________ 140g 48x26x26 Euro Braced.